| abstract |
[Problem] To provide a food containing a substance having a stronger immunoregulatory effect while having high safety. An immunoregulatory composition comprising a water-soluble heteropolysaccharide produced outside of a cell by culturing Acetobacter tropicalis (Acetobacter tropicalis), comprising: The molecular weight of Acetobacter tropicalis is Acetobacter tropicalis SKU1100 (deposited strain number NBRC101654), and the water-soluble heteropolysaccharide is composed of at least glucose and rhamnose Contains over 400,000 water-soluble heteropolysaccharides. [Selection] Figure 1 |